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The formula for class mark and class size of data is ______.

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\frac{actual upper limit - actual lower limit}{2}

and actual upper limit - actual lower limit

\frac{actual upper limit + actual lower limit}{2}

and actual upper limit + actual lower limit

\frac{actual upper limit + actual lower limit}{2}

and actual upper limit - actual lower limit

None of these

answer is C.

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Detailed Solution

Class mark = \frac{actual upper limit + actual lower limit}{2}

class size=actual upper limit - actual lower limit

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